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If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 preference of these two routes? Choose two answers.
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4A0-101 Exam - Question 13
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Correct Answer: BD
If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 will see the IS-IS route using IS-IS's internal preference, as all the routers are in the same level and area. For OSPF, since the route is being injected from IS-IS, it will consider this route as an external OSPF route. Therefore, the two preferences that router R3 will consider are the IS-IS Level 1 internal preference and the OSPF external preference.
Discussion
1 commentflamengo
Aug 21, 2019What is explain?
Kri8or
Dec 30, 2019"If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF". We already know that it is an IS-IS route, and that all routers are on same level and area. So, for IS-IS, it will be seen as internal. For OSPF, the route is being injected from IS-IS so, for the OSPF domain, the route is external to routing domain/area.
flamengo
Jan 30, 2020Thanks Kri8or